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Viverra Tangalunga, Malay Civet The IUCN Red List of Threatened Species™ ISSN 2307-8235 (online) IUCN 2008: T41708A45220284 Viverra tangalunga, Malay Civet Assessment by: Duckworth, J.W., Mathai, J., Wilting, A., Holden, J., Hearn, A. & Ross, J. View on www.iucnredlist.org Citation: Duckworth, J.W., Mathai, J., Wilting, A., Holden, J., Hearn, A. & Ross, J. 2016. Viverra tangalunga. The IUCN Red List of Threatened Species 2016: e.T41708A45220284. http://dx.doi.org/10.2305/IUCN.UK.2016-1.RLTS.T41708A45220284.en Copyright: © 2016 International Union for Conservation of Nature and Natural Resources Reproduction of this publication for educational or other non-commercial purposes is authorized without prior written permission from the copyright holder provided the source is fully acknowledged. Reproduction of this publication for resale, reposting or other commercial purposes is prohibited without prior written permission from the copyright holder. For further details see Terms of Use. The IUCN Red List of Threatened Species™ is produced and managed by the IUCN Global Species Programme, the IUCN Species Survival Commission (SSC) and The IUCN Red List Partnership. The IUCN Red List Partners are: BirdLife International; Botanic Gardens Conservation International; Conservation International; Microsoft; NatureServe; Royal Botanic Gardens, Kew; Sapienza University of Rome; Texas A&M University; Wildscreen; and Zoological Society of London. If you see any errors or have any questions or suggestions on what is shown in this document, please provide us with feedback so that we can correct or extend the information provided. THE IUCN RED LIST OF THREATENED SPECIES™ Taxonomy Kingdom Phylum Class Order Family Animalia Chordata Mammalia Carnivora Viverridae Taxon Name: Viverra tangalunga Gray, 1832 Common Name(s): • English: Malay Civet, Malayan Civet, Oriental Civet Taxonomic Notes: Veron et al. (2014) considered that the population on Belitung island (Indonesia) is so distinct genetically that it should be recognised as an evolutionarily significant unit and managed separately from all other populations of the species. Assessment Information Red List Category & Criteria: Least Concern ver 3.1 Year Published: 2016 Date Assessed: March 3, 2015 Justification: Malay Civet is listed as Least Concern because it has a relatively wide geographic distribution, is commonly recorded in much of its range, is tolerant of degraded habitats, and occurs in many protected areas; the very high camera-trapping detection rates in many studies suggest high densities and stable and large populations. Although ongoing forest loss in its range is presumably causing its population to decline, its wide occurrence outside the level lowlands and use of degraded and fragmented areas means that it is implausible that decline rates could be sufficient even for Near Threatened, either in the past or future three generations (taken as 18 years). Previously Published Red List Assessments 2008 – Least Concern (LC) – http://dx.doi.org/10.2305/IUCN.UK.2008.RLTS.T41708A10538140.en 1996 – Lower Risk/least concern (LR/lc) Geographic Range Range Description: Malay Civet is widespread on the large land-masses of Peninsular Malaysia, Sumatra and Borneo, in all of which it is probably native; on Sulawesi (where it is introduced) and several of the large Philippine islands (where it is evidently introduced on some, but perhaps native on others); and on many smaller islands of the Philippines, on the Sunda shelf and east to Ambon (Indonesia). Although it is evidently native (and genetically distinct) on at least Belitung, the native or introduced status on many of these smaller islands, including Singapore, is not determined, but there is no evidence of natural dispersal east © The IUCN Red List of Threatened Species: Viverra tangalunga – published in 2016. 1 http://dx.doi.org/10.2305/IUCN.UK.2016-1.RLTS.T41708A45220284.en of Wallace's line. Overall, human-mediated dispersal has been very important in generating today's geographic range (Jennings and Veron 2011, Lim and Ou Yang 2012, Veron et al. 2014). There are several records from Java, but there is no evidence of a native population there (Jennings and Veron 2011); a small level of (presumably imported) trade continues there (Nijman et al. 2014). In the Philippines, it has been recorded on Bohol, Busuanga, Camiguin, Catanduanes, Culion, Guimaras, Leyte, Lubang, Luzon, Mindanao, Mindoro, Negros, Palawan, Panay, Samar, Sibuyan and Siquijor (Timm and Birney 1980, Heaney and Tabaranza 1991, Heaney et al. 1991, Jennings and Veron 2011). In Malaysia, it is found in Borneo, Banggi Island, Langkawi Island, Penang Island and on mainland Peninsular Malaysia (Corbet and Hill 1992, Nor 1996, Meiri 2005). In Indonesia, it has been recorded on Ambon, Bacan, Bangka, Bauwal, Belitung, Bintan, Borneo, Bunguran, Buru, Halmahera, Karimata, Kundur, Laut, Lingga, Natuna, Panebangan, Rupat, Sangihe, Seram, Siao, Sumatra, Ternate, and Watubela (Jennings and Veron 2011). Wozencraft (2005) listed it, in addition to its known range, for Cambodia and Thailand, and it was mapped for the southern portion of the latter by Veron et al. (2014); but there is no evidence that it occurs in either of these countries (Holden and Neang 2009, Chutipong et al. 2014). It is perhaps more localised on Sumatra than on Borneo, occurring mainly in the east: J. Holden (pers. comm. 2014) knows of no recent records from the west, and Jennings and Veron (2011) traced only three records ever from this part of the island. It has been recorded from sea-level to 2,100 m (Jennings and Veron 2011). Country Occurrence: Native: Indonesia (Kalimantan, Maluku - Introduced, Sulawesi - Introduced, Sumatera); Malaysia (Peninsular Malaysia, Sabah, Sarawak) Present - origin uncertain: Philippines; Singapore © The IUCN Red List of Threatened Species: Viverra tangalunga – published in 2016. 2 http://dx.doi.org/10.2305/IUCN.UK.2016-1.RLTS.T41708A45220284.en Distribution Map Viverra tangalunga © The IUCN Red List of Threatened Species: Viverra tangalunga – published in 2016. 3 http://dx.doi.org/10.2305/IUCN.UK.2016-1.RLTS.T41708A45220284.en Population Malay Civet is often amongst the most commonly recorded small carnivores in camera-trap and other surveys on Borneo, including those in old-growth forest (e.g., Belden et al. 2007, Cheyne et al. 2010, Mathai et al. 2010, Wilting et al. 2010, Brodie and Giordano 2011, Samejima and Semiadi 2012). It also seems to be common in West Malaysia (e.g., Low 2011). By contrast, some high-effort surveys - including several focused on old-growth forest - in Sumatra (e.g., Holden 2006, McCarthy and Fuller 2014, G. Fredriksson pers. comm. 2014, J. Holden pers. comm. 2014) have failed to find it at all. Without a clearer understanding of habitat use - which perhaps varies between land-mass - it is difficult to make firm statements about population trends. Whilst it evidently remains widespread and common in Borneo, there is insufficient information to be sure that this applies also to the other large landmasses to which it is native, peninsular Malaysia and Sumatra. Current Population Trend: Stable Habitat and Ecology (see Appendix for additional information) Malay Civet occurs in a variety of habitats including primary and secondary forests, cultivated land and the outskirts of villages (Wemmer and Watling 1986, Colon 2002, Azlan 2003, Jennings et al. 2006, Jennings and Veron 2011). It is widely and readily camera-trapped in old-growth forest on Borneo (e.g. Belden et al. 2007, Cheyne et al. 2010, Mathai et al. 2010, Wilting et al. 2010, Brodie and Giordano 2011, Samejima and Semiadi 2012). By contrast, the number of reasonably intensive surveys that have not found it in superficially similar habitat on Sumatra suggests some patchiness of occurrence on that island: such surveys include Holden (2006), McCarthy and Fuller (2014), WCS Indonesia (pers. comm. 2008; many thousand camera-trap nights in Bukit Barisan Selatan National Park) and G. Fredriksson (pers. comm. 2014; about 10,000 camera-trap nights in Batang Toru); Holden (2006) had, however, some incidental records from degraded areas outside the camera-trapped old-growth forest of Kerinci Seblat. Similarly, it was recorded in a camera-trap survey of two lowland oil palm plantations in central Sumatra far from extensive old-growth forest; although records were strongly clustered around the plantation edge, indicating a need for microhabitats (perhaps dense undergrowth, fallen wood) absent from the plantations proper (Jennings et al. 2015); another oil palm plantation-focussed survey in central Sumatra found it commonly in the landscape but did not record it in the plantation itself (Maddox et al. 2007). In one area of Borneo, Malay Civet density in an unlogged forest was about twice that in a logged forest, perhaps because of lower fruit availability in logged forest; potentially, the species might survive in disturbed habitats only by continued inward dispersal from un- or little-disturbed forest (Colon 2002). Also in Malaysian Borneo, J. Brodie (pers. comm. 2014) found that local conservation status was affected negatively by recent logging, but had recovered somewhat in forests that were logged more than 10 years previously. In Sabah, Malaysia, the Proportion of Area Occupied seemed generally higher in less degraded than in more degraded forests, but other factors (as yet unclear) made this far from a perfect link (Sollmann et al. in prep.). In Peninsular Malaysia, radio-tracking of seven Malay Civets in an area of lowland forest abutting plantations found them to use both habitats, concluding that forest was essential, that the civets merely ranged into plantations perhaps primarily for nocturnal feeding, and that suitable day-bed sites might be limiting in them (Jennings et al. 2010), a pattern echoed in Sumatra (Jennings et al. 2015). Similarly, on Borneo, Malay Civet was commonly found within oil palm plantations near the Danum Valley Conservation Area (J. Brodie pers. comm. 2014) and the Sepilok Forest Reserve © The IUCN Red List of Threatened Species: Viverra tangalunga – published in 2016. 4 http://dx.doi.org/10.2305/IUCN.UK.2016-1.RLTS.T41708A45220284.en (A.
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